We always power down the filer:
Halt filer remove scsi cable from tape adapter boot filer ... 2-3 minute outage
replace the drive.
Halt filer attach scsi cable from tape adapter boot filer ... 2-3 minute outage
Two short outages are easier to handle... yes, we have CIFS and NFS connections that are affected. In theory, since we schedule the outage, the users should be prepared... :-)
We currently have 2 9710's but will be consolidating into one L700 -- which has, as you mention, hot swappable drives. But I believe that NetApp still recommends that you power down the filer. Would be nice if that was not so...
Kelly
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Kelly Wyatt, Kelly.Wyatt@SAS.com Senior Systems Programmer Strategic Recovery SAS Institute Inc. / SAS Campus Drive / Cary, NC 27513 http://www.sas.com SAS... The Power to Know
-----Original Message----- From: Micheler Klaus (MDCA Villach) [mailto:Klaus.Micheler@infineon.com] Sent: Monday, August 07, 2000 3:21 AM To: 'toasters@mathworks.com' Subject: Replacing defective DLT7000 drives without rebooting the filer
We have problems with bad drive heads of DLT7000-drives in our Backup Roboter (Storagetek L700). Regulary about all 2 months one of our Driveheads get defective.
Netapp recommends us to power off the filer, replace the drive, and then power on the filer. We don´t like this way, because we have many CIFS-User on that Filer, who will loose their connection in the case of a reboot.
My question is how you handle replacing of drives in a library. Do you power the filer down, or do you replace the drive without powering the filer down (if you do so, how???)
Our configuration is like follows: F760 Filer with 2 DLT 7000 (Part of an STK L700 Library). Both drives are connected to the filer with one "Fast Wide Differential - SCSI-Interface". The library supports swapping of drives without powering it down.
regards, Klaus Micheler Infineon DC Austria